package com.heima.user.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.model.user.dtos.LoginDto;
import com.heima.model.user.pojos.ApUser;
import com.heima.user.mapper.ApUserMapper;
import com.heima.user.service.ApUserService;
import com.heima.utils.common.AppJwtUtil;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.Map;

@Transactional
@Slf4j
@Service(value = "apUserService")
public class ApUserServiceImpl extends ServiceImpl<ApUserMapper, ApUser> implements ApUserService{
	/**
	 * app端登录功能
	 *
	 * @param dto
	 * @return
	 */
	@Override
	public ResponseResult login(LoginDto dto){
		// 1.正常登录 用户名和密码
		if(StringUtils.isNotBlank(dto.getPhone()) && StringUtils.isNotBlank(dto.getPassword())){
			// 1.1 根据手机号查询用户信息
			ApUser dbUser = getOne(Wrappers.<ApUser>lambdaQuery().eq(ApUser::getPhone, dto.getPhone()));
			if(dbUser == null){
				return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST, "用户信息不存在");
			}
			
			// 1.2 比对密码
			String salt = dbUser.getSalt();
			String password = dto.getPassword();
			String pswd = DigestUtils.md5DigestAsHex((password + salt).getBytes());
			if(!pswd.equals(dbUser.getPassword())){
				return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
			}
			
			// 1.3 返回数据  jwt  user
			String token = AppJwtUtil.getToken(dbUser.getId().longValue());
			Map<String, Object> map = new HashMap<>();
			map.put("token", token);
			dbUser.setSalt("");
			dbUser.setPassword("");
			map.put("user", dbUser);
			
			return ResponseResult.okResult(map);
		}else{
			// 2.游客登录
			Map<String, Object> map = new HashMap<>();
			map.put("token", AppJwtUtil.getToken(0L));
			return ResponseResult.okResult(map);
		}
	}
}
